发明名称 |
ENTTINTUNG VON PAPIERPULPE |
摘要 |
<p>A process for separating printing ink from recycled paper fiber includes the steps of repulping recycled paper furnish with water in a rotary mixer for about 5 minutes at a consistency of 6% to 18% with a mixing element having a top speed no greater than 2,000 ft/min. This first stage repulping and mixing is followed by a second mixing stage of 20 to 45 minutes with a mixing element tip speed of 2,500 to 4,000 ft/min. Agglomerated contamination particles in the resulting slurry are removed by centrifugal cleaning and slot screening.</p> |
申请公布号 |
DE69428286(T2) |
申请公布日期 |
2002.04.18 |
申请号 |
DE1994628286T |
申请日期 |
1994.11.04 |
申请人 |
INTERNATIONAL PAPER CO., TUXEDO |
发明人 |
MARKHAM, DERWOOD |
分类号 |
D21B1/32;D21B1/34;D21C5/02;(IPC1-7):C03B37/00;D21C9/08 |
主分类号 |
D21B1/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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